I agree. I had the 3 Way system on my first Class B and I could never figure out what the 12v setting was for. My first Class C And Axis only have a 2 way (propane and 120v). Running even a small refrigerator on 12v will run down your batteries in a very short time and the fridge does not cool very well either. The only time the 12v was useful to me was on a ferry where I had to shut off my propane.
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